/**
 * Copyright 2000 self.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 * 	The greatest achievement is selflessness. The greatest worth is self-mastery.
 * 	The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 * 	The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 * 	The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 * 	The greatest goodness is a peaceful mind. The greatest patience is humility.
 * 	The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 * 	The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 *
 * @author Ashin Wimalajeewa
 */
package self.amigo.elem.uml;

import java.util.HashMap;
import java.util.Map;

import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import self.amigo.elem.PolyLineView;
import self.awt.ILineRenderInfo;
import self.lang.BooleanUtils;
import self.lang.StringUtils;
import self.xml.DomUtils;

public class SequenceDiagramMessageView extends PolyLineView {
	
	/**
	 * If the internal state of this class ever changes in such a way that it can't be defaulted,
	 * then the {@link #serialVersionUID} should be incremented to ensure serialized instances cleanly fail.  
	 */
	private static final long serialVersionUID = 1;
	
  private boolean isAsync;
  
  public SequenceDiagramMessageView() {
    b.head = ILineRenderInfo.OPEN_ARROW_HEAD;
    name = "message()";
  }
  
  // IEditableElement support
  public void       getProperties( Map store ) {
    store.put( CollaborationMessageView.MESSAGE_PROP, name );
    store.put( CollaborationMessageView.ASYNC_PROP, isAsync ? Boolean.TRUE: Boolean.FALSE );
  }
  
  public void       setProperties( Map data ) {
    name = (String) data.get( CollaborationMessageView.MESSAGE_PROP );
    isAsync = ((Boolean) data.get(CollaborationMessageView.ASYNC_PROP)).booleanValue();
    b.head = isAsync ? ILineRenderInfo.HALF_OPEN_ARROW_HEAD: ILineRenderInfo.OPEN_ARROW_HEAD;
    layer.setDirty();
  }
  
  // IPersistentElement support
  public void readFrom( Node self, HashMap idObjLookUp ) throws DOMException {
    name = DomUtils.getElementAttribute( self, CollaborationMessageView.MESSAGE_PROP );
    String asyncAsString = DomUtils.getElementAttribute( self, CollaborationMessageView.ASYNC_PROP );
    isAsync = BooleanUtils.toValue( asyncAsString );
    b.head = isAsync ? ILineRenderInfo.HALF_OPEN_ARROW_HEAD: ILineRenderInfo.OPEN_ARROW_HEAD;
    readPoints( self );
  }

  public void writeTo( Document doc, Element self, HashMap objIdLookup ) throws DOMException {
    DomUtils.setElementAttribute( self, CollaborationMessageView.MESSAGE_PROP, 
      StringUtils.toEmptyIfNull(name) );
    DomUtils.setElementAttribute( self, CollaborationMessageView.ASYNC_PROP, "" + isAsync );
    writePoints( self );
  }
}
